Description
Introduction
The raw material for SSAW spiral welded pipe is strip steel coil, which is extruded at standard temperature and welded using an automatic double-wire double-sided submerged arc welding process, which has high compressive strength, high impact strength, high safety performance, and long service life.
In terms of the welding process, the welding method of spiral welded pipe and straight seam steel pipe is the same, but the straight seam welded pipe will inevitably have a lot of T-shaped welds, so the probability of welding defects is also greatly increased, and the welding residue at the T-shaped welds The stress is large, and the weld metal is often in a three-dimensional stress state, which increases the possibility of cracks.
Moreover, according to the technical regulations of submerged arc welding, each weld should have an arc starting point and an arc extinguishing point, but each straight seam welded pipe cannot meet this condition when welding a circular seam, so there may be more welding defects.
FAQ:
Q1： What can we serve you?
1. Sample can be offered for free.
2. We have full stock and can deliver within a short time as well as many styles for your choices.
3. Good Quality + Factory Price + Quick Response + Reliable Service, is what we are trying our best to offer you.
Q2：How do you guarantee your quality?
1: We have 6 ex-factory inspection procedures.
2: For each batch of products, more than 20 people participate in the quality inspection during the whole process of the material, size, surface treatment, packaging, etc.
3: Ensure that the factory products are 100% qualified.
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